Home / 3,561.92-4,917.36-2,385

Finding the Fourth Proportional to 3,561.92, 4,917.36 and 2,385

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Solution

The fourth proportional to 3,561.92, 4,917.36 and 2,385 is: 3,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.92 : 4,917.36 = 2,385 : x
  2. Step 2: Convert to fraction form
    3,561.92/4,917.36 = 2,385/x
  3. Step 3: Cross multiply
    3,561.92x = 4,917.36 × 2,385
  4. Step 4: Simplify right side
    3,561.92x = 11,727,903.60
  5. Step 5: Solve for x
    x = 11,727,903.60/3,561.92
  6. Step 6: Final answer
    x = 3,292.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.